package com.sy.util;
import java.io.*;
import java.security.*;
public class MD5  {
    public static String hex(byte[] array) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < array.length; ++i) {
            sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).toUpperCase().substring(1,3));
        }
        return sb.toString();
    }
    public static String md5 (String message) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");//想用SHA加密的话就把MD5换成SHA吧
            return hex (md.digest(message.getBytes("CP1252")));
        } catch (NoSuchAlgorithmException e) {
        } catch (UnsupportedEncodingException e) {
        }
        return null;
    }
   
} 